Main Board - Epson PowerLite 5000 Service Manual

2.3 MAIN BOARD

The main board consists of the CPU, P-ROM, video memory (SRAM), digital video
controller, and circuits to control the control panel, computer input interface, monitor
output, speakers, power management, etc. The main board controls everything except
video signal generation. The main board is available as a unit for service. The fuses listed
below are soldered onto the main board and are for reference only.
Table 2-4 Main Board Fuses
Fuse Specifications
FB300 BLM41A8005 (A)
FB316 BLM41A8005 (A)
FB317 BLM41A8005 (A)
FB318 BLM41A8005 (A)
FB802 BLM21B201S (A)
FB806 BLM41A8005 (A)
FB807 BLM41A8005 (A)
FB808 BLM41A8005 (A)
FB809 BLM41A8005 (A)
FB810 BLM41A8005 (A)
FB811 BLM41A8005 (A)
FB812 BLM41A8005 (A)
EPSON PowerLite 5000 Service Manual
Purpose
+12 V Monitor circuit
+12 V Video input A/D circuit
+12 V Computer IN 1/2 circuit
+12 V ADC for Computer IN 1/2
LPST
BACTA
PWDS
STFIL
LSTAT
LV thermistor
Lamp thermistor
PBS thermistor
Figure 2-8
2-9